Receptor holding device



FIG. 1 is a front and side perspective view of a receptor holding device embodying our new design;

FIG. 2 is a back and side perspective view thereof;

FIG. 3 is front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a left side view; and,

FIG. 8 is a bottom view thereof.

The break lines in the drawing views indicate that a specific length of the receptor holding device forms no part of the claimed design. 

CLAIM The ornamental design for a receptor holding device, as shown and described. 